Energy extraction from Janis-Newman-Winicour naked singularity
arXiv:2301.11052 · doi:10.1103/PhysRevD.107.064036
Abstract
In general, energy extraction methods such as the Penrose process and the magnetic Penrose process are thought to be reliant on the existence of an ergoregion. Inside an ergoregion, there are negative energy states that allow a particle to extract energy and escape to an observer at infinity. In this paper, we considered the electromagnetic field in the rotating Janis-Newman-Winicour (JNW) spacetime. This concept is feasible because an accretion disc forms an electromagnetic field around compact objects. After that, we briefly examine negative energy orbits and their significance in energy extraction. The ergoregion is absent in a rotating JNW geometry, but we show that the effective ergoregion is there. The change in a negative energy orbit concerning the magnetic field (B), spin parameter (a), and electric charge (Q) is analyzed. We find that the total energy extraction efficiency within this process can be around for the rotating JNW naked singularity.
arXiv comment11 pages, 18 figures
References in corpus (68)
- Black Hole Shadows, Photon Rings, and Lensing Rings
- Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy
- Time delay and magnification centroid due to gravitational lensing by black holes and naked singularities
- Hunting for extra dimensions in the shadow of M87*
- Naked Singularities in Spherically Symmetric Inhomogeneous Tolman-Bondi Dust Cloud Collapse
- Optical properties of black hole in the presence of plasma: shadow
- A coordinate-independent characterization of a black hole shadow
- Thin accretion disks in stationary axisymmetric wormhole spacetimes
- Distinguishing black holes from naked singularities through their accretion disk properties
- Equilibrium configurations from gravitational collapse
- Electromagnetic signatures of thin accretion disks in wormhole geometries
- Circular geodesics and accretion disks in Janis-Newman-Winicour and Gamma metric
- Can accretion disk properties observationally distinguish black holes from naked singularities?
- Strong gravitational lensing by wormholes
- QED Effect on Black Hole Shadow
- Gravitational Lensing by Rotating Naked Singularities
- Imprints of Dark Matter on Black Hole Shadows using Spherical Accretions
- A novel gravitational lensing feature by wormholes
- Gravitational instabilities of superspinars
- Shadows and rings of the Kehagias-Sfetsos black hole surrounded by thin disk accretion
- Motion of spinning test bodies in Kerr spacetime
- Can strong gravitational lensing distinguish naked singularities from black holes?
- Superradiant evolution of the shadow and photon ring of Sgr A
- Thin Accretion Disk around a four-dimensional Einstein-Gauss-Bonnet Black Hole
- Blandford-Znajek mechanism versus Penrose process
- Timelike geodesics in Naked Singularity and Black Hole Spacetimes
- Thin accretion disk in the Simpson-Visser black-bounce and wormhole spacetimes
- Analytic solutions of the geodesic equation in axially symmetric space-times
- High Energy Particle Collisions in Superspinning Kerr Geometry
- Fifty years of energy extraction from rotating black hole: revisiting magnetic Penrose process
- Radiative Penrose process: Energy Gain by a Single Radiating Charged Particle in the Ergosphere of Rotating Black Hole
- Thin Accretion Disk onto slowly rotating black holes in Einstein-Æther theory
- Particle collisions in ergoregion of braneworld Kerr black hole
- Energy extraction from extremal charged black holes due to the BSW effect
- Spin precession in a black hole and naked singularity spacetimes
- Shadows and precession of orbits in rotating Janis-Newman-Winicour spacetime
- Strong curvature naked singularities in spherically symmetric perfect fluid collapse
- The Collisional Penrose Process
- Energetics of particle collisions near dirty rotating extremal black holes: Banados-Silk-West effect versus Penrose process
- Gravitational collapse of an isentropic perfect fluid with a linear equation of state
- On the global visibility of singularity in quasi-spherical collapse
- Precession of timelike bound orbits in Kerr spacetime
- Ultra-high energy particle collisions in a regular spacetime without blackholes or naked singularities
- Strong gravitational lensing by a strongly naked null singularity
- Perihelion Precession and Shadows near Blackholes and Naked Singularities
- Towards an observational test of black hole versus naked singularity at the galactic center
- Thin accretion disks around traversable wormholes
- Global visibility of a strong curvature singularity in nonmarginally bound dust collapse
- Infinite efficiency of collisional Penrose process: Can over-spinning Kerr geometry be the source of ultra-high-energy cosmic rays and neutrinos ?
- Deflection of Light and Shadow Cast by a Dual Charged Stringy Black Hole
- General relativistic rotational energy extraction from black holes-accretion disk systems
- Globally visible singularity in an astrophysical setup
- Collisional super-Penrose process and Wald inequalities
- Causal Structure of Singularity in non-spherical Gravitational Collapse
- Light trajectory and shadow shape in the rotating naked singularity
- Bound orbits near scalar field naked singularities
- Maximal Efficiency of Collisional Penrose Process with Spinning Particle II
- Accretion disks around naked singularities
- Ultra-high energy collision with neither black hole nor naked singularity
- Dark matter effect on black hole accretion disks
- Acceleration of particles by black holes as a result of deceleration: ultimate manifestation of kinematic nature of BSW effect
- On the global visibility of a singularity in spherically symmetric gravitational collapse
- Geodesic Structure of Naked Singularities in AdS Spacetime
- Backreaction of Mass and Angular Momentum Accretion on Black Holes: General Formulation of the Metric Perturbations and Application to the Blandford-Znajek Process
- Extraction of energy from an extremal rotating electrovacuum black hole: Particle collisions in the equatorial plane
- Special case of the Bañados-Silk-West effect
- Distinguishing between Kerr and rotating JNW space-times via frame dragging and tidal effects
- Decay of charged particles near naked singularities and super-Penrose process without fine-tuning